Model comparison
GPT-6 Luna vs Yi-Lightning
GPT-6 Luna is the stronger model overall, scoring 53.3 to 37.1 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. GPT-6 Luna scores higher in 8 categories and Yi-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-6 Luna leads 76.1 to 36.2.
Side by side
| GPT-6 Luna | Yi-Lightning | |
|---|---|---|
| Provider | OpenAI | 01.AI |
| Noometry Index | 53.3 | 37.1 |
| Released | 2026-09-22 | 2024-12-02 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 42 | 18 |
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Category by category
Coding GPT-6 Luna leads
GPT-6 Luna: 55.5 (#25), Yi-Lightning: 27.4 (#320)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1439 | 1312 |
| DeepSWE | 66.6% | — |
| FrontierCode | 42.4% | — |
| Aider Polyglot | — | 12.9% |
| LMArena WebDev | 1581 | — |
| SciCode | 54.6% | — |
| ALE-Bench | 1,577 | — |
Agentic & Tool Use Not comparable
GPT-6 Luna: 33.3 (#54), Yi-Lightning: —
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| APEX-Agents | 44.3% | — |
| GDP.pdf | 23% | — |
Reasoning GPT-6 Luna leads
GPT-6 Luna: 48.2 (#41), Yi-Lightning: 25.9 (#139)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1411 | 1302 |
| ARC-AGI-2 | 59.3% | — |
| NYT Connections (extended) | 68.7% | — |
| ARC-AGI-1 | 86.7% | — |
| CritPt | 19.4% | — |
| Chess Puzzles | 31% | — |
| Mystery Game Puzzles | 7% | — |
| DTBench | 90.1% | — |
| LMCA | 44.5% | — |
| Epoch Capabilities Index | 156.28 | — |
Math GPT-6 Luna leads
GPT-6 Luna: 76.1 (#15), Yi-Lightning: 36.2 (#172)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Math | 1416 | 1300 |
| FrontierMath (Tiers 1-3) | 78.9% | — |
| FrontierMath Tier 4 | 56.1% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| ProofBench | 64% | — |
Knowledge GPT-6 Luna leads
GPT-6 Luna: 57.0 (#41), Yi-Lightning: 35.4 (#185)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1444 | 1286 |
| GPQA Diamond | 90.5% | — |
| SimpleQA Verified | 41.4% | — |
Multimodal Not comparable
GPT-6 Luna: 42.4 (#30), Yi-Lightning: —
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1217 | — |
| Blueprint-Bench 2 | 31.2% | — |
| Furniture Assembly | 44.2% | — |
Multilingual GPT-6 Luna leads
GPT-6 Luna: 50.5 (#117), Yi-Lightning: 42.2 (#196)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1386 | 1269 |
| LMArena Chinese | 1433 | 1320 |
| LMArena French | 1420 | 1305 |
| LMArena German | 1369 | 1267 |
| LMArena Japanese | 1369 | 1228 |
| LMArena Korean | 1360 | 1192 |
| LMArena Russian | 1394 | 1255 |
| LMArena Spanish | 1393 | 1315 |
Instruction Following GPT-6 Luna leads
GPT-6 Luna: 74.3 (#99), Yi-Lightning: 67.4 (#196)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1409 | 1278 |
Long Context GPT-6 Luna leads
GPT-6 Luna: 43.0 (#111), Yi-Lightning: 39.4 (#181)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1409 | 1297 |
Writing & Preference GPT-6 Luna leads
GPT-6 Luna: 58.3 (#119), Yi-Lightning: 50.2 (#184)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Text | 1391 | 1302 |
| LMArena Creative Writing | 1363 | 1280 |
| LMArena Multi-Turn | 1396 | 1311 |
Frequently asked questions
Is GPT-6 Luna better than Yi-Lightning?
GPT-6 Luna is the stronger model overall, scoring 53.3 to 37.1 on the Noometry Index.
Is GPT-6 Luna or Yi-Lightning better for coding?
GPT-6 Luna scores higher on coding benchmarks: 55.5 versus 27.4 in the Noometry coding category.
How many benchmarks do GPT-6 Luna and Yi-Lightning share?
17 benchmarks have published results for both models. GPT-6 Luna has 42 scored results on Noometry and Yi-Lightning has 18.